Thill-coupling.



N0. 687,l90. Patented Nov. .26, I90l. Y

S. BARTHOLOMEW'.-

THILL COUPLING.

(Application filed Feb. 15, 1901.)

(No Model.)

7420086665: fiu en/tor:

20 view of the same figure.

UNITED STATES PATENT OEEIcE.

SETH BARTHOLOMEW, OF STURGIS, MICHIGAN.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 687,190, dated November 26, 1901. Application filed February 15, 1901 Serial No. 47,426 (No model.)

To all whom it may concern.-

Be it known that I, SETH BARTHOLOMEW,

a citizen of the United States, and a resident of Sturgis, county of St. Joseph, and State of 5 Michigan, have invented a new and useful Improvement in Thin-Couplings, of which the following is a specification.

My invention relates to improvements in carriage-tongue holders wherein ball-bear-.

IO ings are used in contact with bolts support- I 5 rain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of a portion of a carriage-tongue holder with my improvement attached. Fig. 2 is a cross-sectional Fig. 3 is a detail view of my improvement. 4

Similar letters refer to similar part-s throughout the several views.

The jaw A, with the screw-bolt a and the 2 5 clip I), resting therein, constitutes a portion of an ordinary carriage-tongue supporter. A

screw-bolt B with a concave surface on the screw end thereof supports asteel ball thereon and is inserted in the threaded orifice 0, cut into the clip. I), connected with the carriage-tongue. WVhen the bolt'a, encircled by and supporting the clip b, becomes worn therein, the screw-bolt B is turned up and the ball 0 presses the bolt a against the interior of the clip I), and thus prevents noise and rattling and provides a smooth movable pressure conducive to the uniform wear of the parts in contact.

Having now described my invention in full, what I claim as new, and desire to secure by Letters Patent, is-

In a thin-coupling, a thill-iron having a screw-threaded aperture, a steel ball fitting said aperture and a screw-threaded bolt having its inner end concave to fit said ball whereby the ball may be pressed against the thillbolt as set forth.

SETH ARrHoLoMEwL Witnesses:

JOHN S. FLANDERS, FRANK W. FLANDERS. 

